function hideLayer(whichLayer) {
if (document.getElementById) {
// this is the way the standards work
document.getElementById(whichLayer).style.visibility = "hidden";
}
else if (document.all) {
// this is the way old msie versions work
document.all[whichlayer].style.visibility = "hidden";
}
else if (document.layers) {
// this is the way nn4 works
document.layers[whichLayer].visibility = "hidden";
}
}

function showLayer(whichLayer) {
if (document.getElementById) {
// this is the way the standards work
document.getElementById(whichLayer).style.visibility = "visible";
}
else if (document.all) {
// this is the way old msie versions work
document.all[whichlayer].style.visibility = "visible";
}
else if (document.layers) {
// this is the way nn4 works
document.layers[whichLayer].visibility = "visible";
}
}

function LEMS_hideAll() {
  hideLayer('LEMS_regInstr');
  hideLayer('LEMS_regPricing');
  hideLayer('LEMS_regInfo');
  hideLayer('LEMS_regClass');
  hideLayer('LEMS_regContests');
  hideLayer('LEMS_regHousing');
  hideLayer('LEMS_regPayment');
  updatePayment();

}